Smart staffing decisions protect your profit margins before they disappear. Most restaurant owners schedule staff based on hunches, creating expensive overstaffing or service-killing understaffing. Accurate revenue forecasts give you control over labor costs and stop profit leaks from poor scheduling choices.
Why revenue forecasts matter for controlling labor expenses
Labor costs typically eat up 25% to 35% of your revenue - often your second-largest expense after ingredients. Planning without solid forecasts means you're flying blind:
- Overstaffing = bloated payroll, shrinking profits
- Understaffing = rushed service, frustrated customers
- Poor timing = kitchen chaos, costly mistakes
⚠️ Watch out:
Adding one unnecessary person per shift costs roughly €150-200. Over 6 shifts weekly, that's €46,800-62,400 annually in wasted payroll - the kind of thing you only learn after closing your first month at a loss.
Building forecasts from your historical numbers
Reliable revenue forecasts start with your past performance data. Examine these factors:
- Previous week, same day: Your starting baseline
- Last year, same date: Reveals seasonal trends
- External factors: Weather conditions, local events, holidays
- Recent patterns: Growth or decline over past months
💡 Example:
Previous Thursday: €2,400 revenue, 85 covers
- Same Thursday last year: €2,200 (+9% growth trend)
- Weather forecast: sunny (last week was rainy)
- No special events scheduled
This Thursday's forecast: €2,600 revenue, 95 covers
Converting revenue forecasts into staffing requirements
Once you've got your revenue forecast, calculate staffing needs using these ratios:
- Kitchen staff: 1 cook per 25-30 covers per shift
- Front of house: 1 server per 15-20 covers per shift
- Dish pit: 1 dishwasher per 40-50 covers per shift
💡 Example calculation:
Forecast: 95 covers
- Kitchen: 95 ÷ 25 = 4 cooks
- Service: 95 ÷ 18 = 5 servers
- Dish pit: 95 ÷ 45 = 2 dishwashers
Total: 11 staff members scheduled
Tracking and controlling labor cost percentages
Calculate your labor cost percentage with this formula:
Labor cost % = (Total payroll / Revenue excl. VAT) × 100
Target 25-35% for most restaurants. Fine dining concepts can run higher (up to 40%), while fast-casual operations should stay lower (20-28%).
💡 Example labor cost:
Forecast revenue: €2,600 (excl. VAT: €2,385)
- 11 staff × €18/hour × 8 hours = €1,584
- Labor cost: (€1,584 ÷ €2,385) × 100 = 66%
Way too high! Time to adjust staffing.
Creating flexible scenarios for different outcomes
Build multiple scenarios so you can adapt quickly:
- Base scenario: Your most likely revenue projection
- High scenario: +20% above forecast
- Low scenario: -20% below forecast
Schedule your core team for the low scenario. For busier periods, you'll call in additional staff or extend existing shifts.
⚠️ Watch out:
Don't schedule for your busiest projection. You'll end up overstaffed during normal rushes, sending labor costs through the roof. Plan lean and add people as demand increases.
Making real-time adjustments throughout service
Compare actual performance against forecasts daily:
- Revenue tracking ahead? Bring in extra hands
- Sales lagging behind? Send people home early
- Major variance? Update future forecasts
Monitor revenue at mid-shift. You can still make adjustments for the evening rush.
How do you set up a revenue forecast? (step by step)
Gather historical data
Look at revenue and covers from the same day last week, last month, and last year. Note any special circumstances like weather, events, or holidays that had an impact.
Adjust for circumstances
Adapt your base forecast for weather, local events, school holidays, or other factors. Sunny weather can mean 10-20% more revenue for patios.
Calculate staffing needs
Use the rule of thumb: 1 chef per 25-30 covers, 1 server per 15-20 covers. Round up for safety, but don't plan too generously.
Check your labor cost percentage
Calculate (payroll ÷ expected revenue excl. VAT) × 100. Aim for 25-35% for restaurants. Too high? Cut one person or shorten the shifts.
Make an adjustment plan
Determine who you can call in during busy times and who can go home early if revenue is lower. Communicate this to your team in advance.
✨ Pro tip
Track actual revenue against your forecast at the 4-hour mark of each shift. You can still cut labor costs by sending staff home early or boost service by extending shifts when needed.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
What if my forecasts are consistently off?
Look for patterns in your mistakes. Are you always too optimistic or pessimistic? Missing factors like weather or local events? Your accuracy improves with practice and attention to detail.
How do I handle staff who resist flexible scheduling?
Build flexibility into employment agreements from day one. Explain that unpredictable scheduling threatens everyone's job security. Reward flexible team members with preferred shifts and extra hours when available.
Should I create separate forecasting models for different seasons?
Absolutely, especially if you're in a seasonal market. Develop distinct models for summer/winter, school periods, and major holidays. Your customer patterns shift dramatically throughout the year, and your forecasts should reflect that.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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